الصرف الصحي غير المُحسن (%) (النسبة المئوية)
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 |
| فنزويلا (جمهورية فنزويلا البوليفارية) | 6.5 | 4.7 | 2.9 | 2.6 | 2.2 | 1.8 | 1.8 | 1.8 | | | | | | | |
| البرازيل | 28.3 | 29.8 | 31.2 | 31.5 | 31.7 | 32.0 | 32.3 | 32.6 | 32.9 | 33.2 | 33.4 | 33.7 | 34.0 | 34.3 | 34.3 |
| كوستا ريكا | 7.3 | 6.1 | 5.0 | 4.7 | 4.5 | 4.3 | 4.0 | 3.8 | 3.6 | 3.3 | 3.1 | 2.9 | 2.6 | 2.4 | 2.2 |
| بلزي | 4.4 | 4.2 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 |
| باراجواي | 46.3 | 36.7 | 27.2 | 25.3 | 23.4 | 21.4 | 19.5 | 17.6 | 15.7 | 13.8 | 11.9 | 10.0 | 8.1 | 6.1 | 4.2 |
| سانت لوشيا | 1.4 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| كولومبيا | 6.4 | 5.3 | 4.2 | 4.0 | 3.8 | 3.5 | 3.3 | 3.1 | 2.9 | 2.6 | 2.4 | 2.2 | 2.0 | 1.7 | 1.5 |
| الأرجنتين | 27.5 | 24.2 | 13.2 | 12.5 | 11.9 | 11.9 | 11.9 | 19.6 | 19.6 | | | | | | |
| بنما | 33.1 | 29.5 | 25.9 | 25.2 | 24.5 | 23.7 | 23.0 | 22.3 | 21.6 | 20.9 | 20.1 | 19.4 | 18.7 | 18.0 | 18.0 |
| السلفادور | 2.3 | 2.2 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 | 1.7 |
| هندوراس | 12.1 | 10.1 | 8.2 | 7.8 | 7.4 | 7.0 | 6.6 | 6.2 | 5.8 | 5.4 | 5.0 | 4.6 | 4.3 | 3.9 | 3.5 |
| نيكاراجوا | 23.2 | 21.8 | 20.5 | 20.2 | 20.0 | 19.7 | 19.4 | 19.2 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | | |
| المكسيك | 15.7 | 12.7 | 9.7 | 9.1 | 8.5 | 7.9 | 7.3 | 6.6 | 6.0 | 5.4 | 4.8 | 4.2 | 3.6 | 3.0 | 1.8 |
| أوروجواي | 7.5 | 7.0 | 4.9 | 4.5 | 4.1 | 3.7 | 3.3 | 2.9 | 2.4 | 2.0 | 1.6 | 1.1 | 1.0 | 1.0 | 1.0 |
| بيرو | 16.9 | 18.6 | 20.3 | 20.6 | 21.0 | 21.3 | 21.7 | 22.0 | 22.3 | 22.7 | 23.0 | 23.4 | 23.7 | 24.1 | 24.4 |
| بوليفيا | 18.7 | 18.8 | 19.0 | 19.0 | 19.0 | 19.0 | 19.1 | 19.1 | 19.1 | 19.1 | 19.2 | 19.2 | 19.2 | 19.2 | 19.3 |
| شيلي | 28.4 | 19.4 | 10.4 | 8.6 | 6.8 | 5.0 | 3.2 | 1.4 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| جواتيمالا | 30.8 | 30.5 | 30.2 | 30.1 | 30.0 | 30.0 | 29.9 | 29.8 | 29.8 | 29.7 | 29.7 | 29.6 | 29.5 | 29.5 | 29.4 |
| جويانا | 14.5 | 11.2 | 7.9 | 7.3 | 6.6 | 6.0 | 5.3 | 4.7 | 4.0 | 3.3 | 2.7 | 2.0 | 1.4 | 1.0 | 1.0 |
| جامايكا | 3.5 | 2.5 | 1.5 | 1.4 | 1.2 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| الإكوادور | 11.8 | 9.1 | 6.4 | 5.8 | 5.3 | 4.8 | 4.2 | 3.7 | 3.1 | 2.6 | 2.1 | 1.5 | 1.0 | 1.0 | 1.0 |
| الولايات المتحدة الأمريكية | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.1 | 1.2 | 1.4 | 1.5 |
| هايتي | 30.3 | 29.2 | 28.0 | 27.8 | 27.5 | 27.3 | 27.1 | 26.8 | 26.6 | 26.4 | 26.1 | 25.9 | 25.9 | 25.9 | 25.9 |
| سورينام | 4.7 | 4.9 | 5.1 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| جمهورية الدومينيكان | 6.3 | 5.6 | 4.8 | 4.6 | 4.5 | 4.3 | 4.2 | 4.0 | 3.9 | 3.7 | 3.6 | 3.4 | 3.3 | 3.1 | 2.9 |
| كوبا | 9.8 | 8.5 | 7.2 | 6.9 | 6.7 | 6.4 | 6.2 | 5.9 | 5.6 | 5.4 | 5.1 | 4.8 | 4.6 | 4.3 | 3.9 |
| كندا | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.1 | 1.1 | 1.1 | 1.2 | 1.2 | 1.2 | 1.2 |
| أنتيجوا وباربودا | | | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 |
| سانت فينسنت والجرينادينز | 29.8 | 22.0 | 14.1 | 12.6 | 11.0 | 9.4 | 7.9 | 7.9 | 7.9 | 7.9 | 7.9 | | | | |